Tool for removing or inserting bushings, bearings, or the like



A. ULLMO TOOL FOR REMOVING OR INSERTING BUSHINGS, BEARINGS OR THE LIKEFiled Sept. 29, 1934 INVENTOR.

ATTORNEY.

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Patented Apr. 7. 1936 2,ii3d,'7ii2 TUUlL FUR REIWUWNG UR illiISlERiG'rBlUSHlINGfi, RE i GS, @lit TlliilE lLlIMlE Andre llllmo, @Dllevelland,(this Application dept-ember 29, 19%, Serial No. 'i ttadlfi ll (Claim.(or. were) This invention relates to a tool for removing bushings,bearings or the like from inaccessible places. The tool is particularlyadaptable for removing the bearings from the end plate of an electricmotor. it is also adaptable for inserting the valve guides of aninternal combustion engine.

The main object of the invention is to provide a tool of the characterdescribed which consists of few parts, and which can be manufactured atlow cost and which are readily assembled and disassembled.

' A further object of the invention is to provide a tool of thecharacter described which is provided with adapters and connections "foraccommodating the device for use for the different pur poses set forth.

Further and more limited objects of the invention will appear as thedescription proceeds and by reference to the accompanying drawing inwhich Fig. l is a view in side elevation of my improved tool; Fig. 2 isa vertical sectional view of the tool shown in Fig. 1, showing the toolbeing used to remove a bushing or bearing; Fig. 3 is a view similar toFig. 2 showing how the tool is 'used to insert a bushing or hearing inplace; Fig. 4 is a vertical sectional view on the line ll-d of Fig. 2;Fig. 5 is a view of the same tool having a member detachably securedthereto to adapt it for use for removing a bearing from inaccessibleplaces and Fig. 6 is a fragmentary detail sectional view showing themanner in which the extensions are applied to the rod.

Referring now to the drawing, the tool consists essentially of a bodymember l which 'is preferably cylindrical in shape and provided with ahollow sleeve-like extension 2. Extending axially of the body member lis an opening 3 through which extends a rod t having a threaded portion5 adjacent one end. The opposite end of the rod is somewhat reduced indiameter as shown at t and is provided with a threaded end portion 7!adapted to receive thereover a tap t which is provided with a shoulderadapted to be inserted within the end of a bushing or bearing, as shownin Fig. 2. The rod t is slidably mounted within the opening in the bodymember and is held against rotation with respect thereto by means of akey Threadedly secured over the opposite end of the rod 4 is a nut illin which are threadedly secured a pair of arms I l and i2 by means ofwhich the nut may be turned. It will be clear that rotation of the nutID will cause an endwise movement of the rod 4 with respect to the bodymemberl.

The reference character l3 indicates a member I also provide anextension rod in which it is desired to remove or insert a bushing orbearing which is indicated by the reference character lid. When the toolis to be used to remove a bearing, the parts are moved to the positionshown in Fig. 2 so that the reduced end of 5 the rod projects beyond theend of the hearing. The tap it is then threadedly secured to the reducedend portion i of the rod and the nut it then turned by means of the armsii and ill to pull the bearing toward the left as seen in Fig. 2 10 intothe hollow end portion 2 of the body memher i. 'When it is desired toinsert a bearing in place, the parts are moved to the position shown inFig. 3 and the bearing it is then secured over the extending end portionof the rod and the tap it secured in place. The nut iii is then turnedto force the bushing up into the member it. i

In order to adapt the .tool for use in removing bushings or bearingsfrom inaccessible places,

such as from connecting rods or pistons, it pro- 29 vide a sleeve-likeextension or adapter iii which iits into the end portion 2 of the bodymember.

it which is threadedly secured to the reduced end l of the rod t bymeans of a coupling member ill. The outer end of the extension rod it isprovided with an enlarged head portion d. I furnish with the tool one ormore adapters it and extensions it whereby to adapt the tool for use forpurposes hereinbefore described. In Fig. 6 there is disclosed anextension rod til having a threaded socket til and a reduced threadedend portion ti adapted to receive a tap t thereover.

The end of the body member t adjacent the nut it is knurled as shown atit so that it may be more readily gripped in the hand. It is of courseunderstood that I supply with the tool a number of taps 8 adapted to fitthe different sized bearings or bushings. 4!

It will now be clear that I have provided a tool of the characterdescribed which will accomplishthe objects of the invention hereinbeforestated. It is to be understood that the embodiment of the inventionherein disclosed is merely illustrative and is not to be considered in alimiting sense as various changes may be made Without departing from thespirit of my invention. It is therefore understood also that I furnishwith the tool a number of taps 9 of different sizes and that these tapsmay have a tapered shouldered portion to fit different sized hearings orbushings. It is therefore to be understood that the invention is to belimited only in accordance with the scope of the appended claim.

10 same endwise with respect to said body member,

and a tap detachably secured to the outer end of said rod adapted toengage a bushing, bearing or the like, said nut having a pair of armsthereon by means of which it may be manually operated, and an adapterdetachably secured within the end of said body member and having ahollow reduced sleeve-like extension thereon, said tap having a shoulderthereon adapted to engage a bushing, hearing or the like.

ANDRE ULLMO.

